endemic to a single state or province
Regularity: Regularly occurring
Type of Residency: Year-round
Global Range: (<100-250 square km (less than about 40-100 square miles)) ENDEMIC TO KAUAI. SNAILS COLLECTED IN MOLOAA.
Habitat Type: Terrestrial
Comments: GOUND DWELLING SNAIL.
Habitat and Ecology
Non-Migrant: No. All populations of this species make significant seasonal migrations.
Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: No. No populations of this species make annual migrations of over 200 km.
Number of Occurrences
Note: For many non-migratory species, occurrences are roughly equivalent to populations.
Estimated Number of Occurrences: 1 - 5
Comments: ONLY ONE HISTORIC POST-1945 OCCURRENCE (1952). Likely extinct (Hawaii Biological Survey web site http:/hbs.bishopmuseum.org/endangered/ext-snails.html, updated 9 February 1997).
1 - 1000 individuals
Comments: TOTAL POPULATION SIZE UNKNOW.
National NatureServe Conservation Status
Rounded National Status Rank: NH - Possibly Extirpated
NatureServe Conservation Status
Rounded Global Status Rank: GH - Possibly Extinct
Reasons: GHSH. ONLY ONE HISTORIC POST-1945 OCCURRENCE (1952). Likely extinct (Hawaii Biological Survey web site http:/hbs.bishopmuseum.org/endangered/ext-snails.html, updated 9 February 1997).
Other Considerations: MALACOLOGISTS BELIEVE THAT VIRTUALLY ALL NATIVE TERRESTRIAL SNAILS OF HAWAII ARE RARE AND IN DANGER OF EXTINCTION.
IUCN Red List Assessment
Red List Category
Red List Criteria
- Needs updating
- 1994Extinct(Groombridge 1994)
- 1990Extinct(IUCN 1990)
Degree of Threat: A : Very threatened throughout its range communities directly exploited or their composition and structure irreversibly threatened by man-made forces, including exotic species
- Mollusc Specialist Group 1996. Carelia dolei. 2006 IUCN Red List of Threatened Species. Downloaded on 6 August 2007.
|This Amastridae-related article is a stub. You can help Wikipedia by expanding it.|